We have put a link to x-raymarkers.net on our website, swimagingcouncil.org (SWIC -SouthWest Imaging Council-a low cost source of CEU's in Houston that is run by techs.). I purchased a couple of sets last year and put up your flyer on the wall. Now everytime someone has needed some fast, great markers, I hear about this y'all. Keep up the good work!